1) Make everyone "certain" that what I am saying has immense value; while,

2) not scaring (or inducing resistance in) the great majority of those who experience it

3) does not satisfy curiosity instead of serving a real purpose; and

4) utilizes the least amount of energy, all things considered. (For example, getting everyone to dream the same thing on a particular day would certainly be profound but there would be a lot of energy wasted afterwards, and would serve no real purpose other than to promote confusion)

and no, this isn't a challenge for anyone to think of something I could do to "prove" it.

The moment I prove anything is the moment when I stop being seen as mortal.

Quoting: Chaol

Shoot me a personal message, show me. I will keep your secret.

Quoting: Jesse Sovoda

lol! That would be #3, wouldn't it?

It's more interesting to give 'just enough' to keep interest but not too much that someone is likely to resist (or be afraid).